/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright 2001-2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.impl.dv.xs;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
import com.sun.org.apache.xerces.internal.util.XMLChar;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.xs.datatypes.XSQName;

/**
 * Represent the schema type "QName" and "NOTATION"
 *
 * @author Neeraj Bajaj, Sun Microsystems, inc.
 * @author Sandy Gao, IBM
 * @xerces.internal
 */
public class QNameDV extends TypeValidator {

  private static final String EMPTY_STRING = "".intern();

  public short getAllowedFacets() {
    return (XSSimpleTypeDecl.FACET_LENGTH | XSSimpleTypeDecl.FACET_MINLENGTH
        | XSSimpleTypeDecl.FACET_MAXLENGTH | XSSimpleTypeDecl.FACET_PATTERN
        | XSSimpleTypeDecl.FACET_ENUMERATION | XSSimpleTypeDecl.FACET_WHITESPACE);
  }

  public Object getActualValue(String content, ValidationContext context)
      throws InvalidDatatypeValueException {

    // "prefix:localpart" or "localpart"
    // get prefix and local part out of content
    String prefix, localpart;
    int colonptr = content.indexOf(":");
    if (colonptr > 0) {
      prefix = context.getSymbol(content.substring(0, colonptr));
      localpart = content.substring(colonptr + 1);
    } else {
      prefix = EMPTY_STRING;
      localpart = content;
    }

    // both prefix (if any) a nd localpart must be valid NCName
    if (prefix.length() > 0 && !XMLChar.isValidNCName(prefix)) {
      throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1",
          new Object[]{content, "QName"});
    }

    if (!XMLChar.isValidNCName(localpart)) {
      throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1",
          new Object[]{content, "QName"});
    }

    // resove prefix to a uri, report an error if failed
    String uri = context.getURI(prefix);
    if (prefix.length() > 0 && uri == null) {
      throw new InvalidDatatypeValueException("UndeclaredPrefix", new Object[]{content, prefix});
    }

    return new XQName(prefix, context.getSymbol(localpart), context.getSymbol(content), uri);

  }

  // REVISIT: qname and notation shouldn't support length facets.
  //          now we just return the length of the rawname
  public int getDataLength(Object value) {
    return ((XQName) value).rawname.length();
  }

  /**
   * represent QName data
   */
  private static final class XQName extends QName implements XSQName {

    /**
     * Constructs a QName with the specified values.
     */
    public XQName(String prefix, String localpart, String rawname, String uri) {
      setValues(prefix, localpart, rawname, uri);
    } // <init>(String,String,String,String)

    /**
     * Returns true if the two objects are equal.
     */
    public boolean equals(Object object) {
      if (object instanceof QName) {
        QName qname = (QName) object;
        return uri == qname.uri && localpart == qname.localpart;
      }
      return false;
    } // equals(Object):boolean

    public synchronized String toString() {
      return rawname;
    }

    public javax.xml.namespace.QName getJAXPQName() {
      return new javax.xml.namespace.QName(uri, localpart, prefix);
    }

    public QName getXNIQName() {
      return this;
    }
  }
} // class QNameDVDV
